Guesstimate is a number guessing game with different modes:
Casual Mode: Guess a number between 1 and 10 within 5 attempts.
Rapid Fire Mode: Guess a number between 1 and 10 within 5 attempts and 30 seconds.
Challenge Mode: Guess a number between 1 and 20 within 5 attempts and 30 seconds. Every incorrect guess reduces the time.
Custom Mode: Set a custom range and guess a number within a custom number of attempts